[root@iscsi1-bak ~]# mount | grep /dev/mapper
/dev/mapper/euleros-root on / type ext4 (rw,relatime,seclabel)
/dev/mapper/euleros-home on /home type ext4 (rw,relatime,seclabel)
/dev/mapper/360014059af01639a6dd413eaa74242b7 on /opt/360014059af01639a6dd413eaa74242b7 type ext4 (ro,relatime,seclabel,errors=remount-ro,stripe=8192,data_err=abort)
/dev/mapper/36001405a445b4de980b47b79aa680b25 on /opt/36001405a445b4de980b47b79aa680b25 type ext4 (ro,relatime,seclabel,errors=remount-ro,stripe=2048,data_err=abort)

[root@iscsi1-bak ~]# lsblk
NAME                                MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINTS
loop0                                 7:0    0     1G  0 loop  /tmp/test
sda                                   8:0    0   140G  0 disk  
├─sda1                                8:1    0   600M  0 part  /boot/efi
├─sda2                                8:2    0     1G  0 part  /boot
└─sda3                                8:3    0 138.4G  0 part  
  ├─euleros-root                    253:0    0    70G  0 lvm   /
  ├─euleros-swap                    253:1    0   6.1G  0 lvm   [SWAP]
  └─euleros-home                    253:2    0  62.3G  0 lvm   /home
sdb                                   8:16   0    20G  0 disk  /opt
sdc                                   8:32   0     1G  0 disk  
└─36001405edde5f2efb8f42d691cb7fe58 253:5    0     1G  0 mpath 
sdd                                   8:48   0     2G  0 disk  
└─36001405a445b4de980b47b79aa680b25 253:6    0     2G  0 mpath /opt/36001405a445b4de980b47b79aa680b25
sde                                   8:64   0   200M  0 disk  
└─36001405b8e8a26da6bb43bba330d355d 253:4    0   200M  0 mpath /opt/360014059af01639a6dd413eaa74242b7
sdf                                   8:80   0   100M  0 disk  
└─360014059af01639a6dd413eaa74242b7 253:3    0   100M  0 mpath /opt/360014059af01639a6dd413eaa74242b7
sdh                                   8:112  0     1G  0 disk  
└─36001405edde5f2efb8f42d691cb7fe58 253:5    0     1G  0 mpath 
sdi                                   8:128  0     2G  0 disk  
└─36001405a445b4de980b47b79aa680b25 253:6    0     2G  0 mpath /opt/36001405a445b4de980b47b79aa680b25
sdj                                   8:144  0   200M  0 disk  
└─36001405b8e8a26da6bb43bba330d355d 253:4    0   200M  0 mpath /opt/360014059af01639a6dd413eaa74242b7
sdl                                   8:176  0   100M  0 disk  
└─360014059af01639a6dd413eaa74242b7 253:3    0   100M  0 mpath /opt/360014059af01639a6dd413eaa74242b7